Why must ground ladders be cleaned periodically even if not used at a scene?

Ground ladders must be cleaned periodically even if not used at a scene primarily because they accumulate road grime from being stored on the apparatus or transported to incidents. Over time, this road grime can consist of dirt, oil, and other contaminants that can affect the performance and integrity of the ladders.

When ladders are utilized, they may encounter various environmental conditions that contribute to their wear and potential degradation. Cleaning ensures that any accumulated debris does not compromise their structural components or grip when deployed. Regular maintenance, including cleaning, contributes to the overall safety and effectiveness of the ladder, ensuring it can perform as intended when needed.

The other choices reference possible misconceptions related to ladder maintenance. While factors such as moisture could contribute to certain issues, the primary focus for cleaning ground ladders revolves around the buildup of grime during transport and storage. This emphasizes the importance of maintaining equipment not just after use but also as part of standard upkeep procedures.